A continuous multi-layer stirring boiling dryer

Abstract

The present invention relates to a continuous multi-layer stirring boiling dryer, which belongs to the technical field of dryers. It includes a container body, and a hot air blower is arranged on one side of the bottom of the container body, an air outlet plate is arranged at the bottom of the inner bottom of the container body, a mesh plate is arranged on the upper part of the air outlet plate, and a stirring rod is also arranged on the upper end of the mesh plate; the stirring rod includes a transversely installed main shaft, and a plurality of connecting rods are arranged in a spiral shape on the main shaft, and a lifting plate is arranged on the top of each connecting rod; the mesh plate is an arc-shaped structure. The present invention forms a specific dryer and its stirring shaft by setting a specific lifting plate angle and setting a connection angle between the hypotenuse and the bottom edge on the lifting plate cross section, which can not only allow the material to be continuously turned over and fully dried during the working process of the stirring shaft, but also allow the material to continuously move along a spiral route as the stirring shaft rotates.

Description

Technical Field

[0001] The invention relates to a continuous multi-layer stirring boiling dryer, belonging to the technical field of dryers. Background Art

[0002] Under the existing technology, the fluidized bed dryer uses air heated by a heat exchanger to form hot air that is distributed into the main machine through a valve plate. The wet material enters the dryer from the feeder. Due to the effect of wind pressure, the material forms a boiling state in the dryer and is in extensive contact with the hot air, thereby completing the drying of the material in a relatively short time. However, for materials with high humidity, high specific gravity and non-fluid state, the drying efficiency of traditional fluidized bed dryers is often relatively poor.

[0003] A Chinese patent with the patent publication number CN108731387A discloses a high-efficiency fluidized bed dryer, including a drying box, one side of which is provided with a feed inlet, the other side of which is provided with a discharge outlet, and the interior of the drying box is provided with a slope. The high-efficiency fluidized bed dryer can transfer materials from the drying box to the outside. Under the action of the second stirring shaft and the first stirring shaft, the materials can gradually rise on the slope, changing the position of the materials in the heating box during drying. During the movement of the materials, the hot air blower blows hot air to dry them, with good drying effect. The evenly arranged air outlet can make the materials dry evenly. On the other hand, a first drain outlet is provided on the side of the first stirring shaft away from the slope, which can drain water and increase the drying speed. A second filter is fixedly connected to the first drain outlet to filter. A heater is fixedly installed at the bottom of the drying box to heat the materials, so that the materials in the heating box are in a boiling state.

[0004] However, the above patent achieves the technical effect of transporting materials by setting up multiple second stirring shafts and first stirring shafts, but a slope is set up. The material is easy to slide down on the slope due to its large specific gravity and large gravity, resulting in low transportation efficiency. Therefore, the above patent has the problems of high energy consumption and low transportation efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the above background problems and to provide a continuous multi-layer stirring boiling dryer, which has a reasonable structure and a multi-layer drying box, and can dry the materials fully and efficiently.

[0006] The object of the present invention is achieved as follows: a continuous multi-layer stirring boiling dryer, comprising a container body, a hot air blower is arranged on one side of the bottom of the container body, an air outlet plate is arranged at the bottom of the container body, a mesh plate is arranged at the upper part of the air outlet plate, and a stirring rod is also arranged at the upper end of the mesh plate;

[0007] The stirring rod comprises a transversely mounted main shaft, on which a plurality of connecting rods are arranged in a spiral shape, and a lifting plate is arranged at the top of each connecting rod;

[0008] The mesh plate is an arc-shaped structure;

[0009] The angle between the setting direction of the copy board and the central axis of the main shaft is 30-45°;

[0010] The cross section of the copy board is a right-angle trapezoid, and the connection angle between the hypotenuse and the bottom edge is 25-30 degrees.

[0011] The setting angle of the lifting plate is set towards the moving direction of the material.

[0012] The container body comprises a plurality of drying boxes arranged in a serpentine shape, a partition is arranged between every two layers of drying boxes, and a plurality of ventilation holes are arranged on the partition;

[0013] Each layer of the drying box is equipped with a matching screen plate and a stirring rod.

[0014] The container body comprises two layers of drying ovens, namely an upper drying oven and a lower drying oven;

[0015] A partition is provided between the upper drying box and the lower drying box;

[0016] A feed port is provided on one side of the upper drying box, and a transport pipeline is connected on the other side;

[0017] The bottom of the transport pipeline is an inclined channel connected to one side of the drying box on the lower layer;

[0018] A discharge port is arranged on the other side of the lower drying box.

[0019] The horizontal distance between every two connecting rods is 250-350mm.

[0020] The distance between the copy plate and the mesh plate is 1-5 mm.

[0021] The main shaft is connected with a coupling;

[0022] The coupling is provided with kinetic energy by a driving motor through a belt transmission.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The continuous multi-layer stirring and boiling dryer of the present invention is provided with a specific setting angle of the lifting plate, an inclination angle between the connecting rod and the main shaft, and an inclination angle between the lifting plate and the connecting rod, so that the material can be continuously moved forward as the stirring shaft rotates; at the same time, the cross section of the lifting plate is a right-angle trapezoid, so that the material can be continuously lifted and turned over, and a specific stirring shaft is formed as a whole, so that the material can be continuously turned over and fully dried during the working process of the stirring shaft, and the material can be continuously moved forward along a spiral route as the stirring shaft rotates;

[0025] The continuous multi-layer stirring boiling dryer of the present invention is provided with multi-layer drying boxes, which are arranged in a serpentine shape, larger than a normal drying route, and has sufficient drying and higher efficiency;

[0026] The continuous multi-layer stirring fluidized bed dryer of the present invention is different from the traditional fluidized bed dryer and is more suitable for materials with high humidity, high specific gravity and non-fluid state. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a continuous multi-layer stirring boiling dryer.

[0028] Figure 2 The figure is a side structural interior view of a continuous multi-layer stirring boiling dryer according to the present invention.

[0029] Figure 3 The present invention is a schematic diagram of a specific three-dimensional structure of a stirring rod of a continuous multi-layer stirring boiling dryer.

[0030] Figure 4 The present invention is a schematic overall diagram of a stirring rod of a continuous multi-layer stirring boiling dryer.

[0031] in:

[0032] 1. Container body; 2. Hot air blower; 3. Air outlet plate; 4. Screen plate; 5. Stirring rod; 6. Feed inlet; 7. Discharge outlet; 8. Partition plate; 9. Transport pipeline; 10. Drive motor; 11. Coupling;

[0033] 1.1, upper drying oven; 1.2, lower drying oven;

[0034] 5.1. Main shaft; 5.2. Connecting rod; 5.3. Copy board. DETAILED DESCRIPTION

[0035] The present invention is described below in conjunction with the accompanying drawings and specific embodiments:

[0036] like Figures 1 to 4As shown, a continuous multi-layer stirring boiling dryer comprises a container body 1, a hot air blower 2 is arranged on one side of the bottom of the container body 1, an air outlet plate 3 is arranged at the bottom of the container body 1, a mesh plate 4 is arranged on the upper part of the air outlet plate 3, and a stirring rod 5 is also arranged on the upper end of the mesh plate 4;

[0037] The stirring rod 5 comprises a transversely mounted main shaft 5.1, on which a plurality of connecting rods 5.2 are arranged in a spiral shape, and a lifting plate 5.3 is arranged at the top of each connecting rod 5.2;

[0038] The mesh plate 4 is an arc-shaped structure;

[0039] The angle between the setting direction of the copy board 5.3 and the central axis of the main shaft 5.1 is 30-45°;

[0040] The cross section of the copy board 5.3 is a right-angled trapezoid, and the connection angle between the hypotenuse and the bottom edge is 25-30°;

[0041] In this embodiment, the angle between the connecting rod 5.2 and the main shaft 5.1 is 90°;

[0042] In this embodiment, the lifting plate 5.3 and the connecting rod 5.2 may be located on the same center line in the vertical direction, or an inclination angle may be set between the lifting plate 5.3 and the connecting rod 5.2, and the inclination angle may be set to 40-50°.

[0043] The setting angle of the lifting plate 5.3 is set towards the moving direction of the material.

[0044] The container body 1 includes a plurality of drying boxes arranged in a serpentine shape, with a partition provided between every two layers of drying boxes, and a plurality of ventilation holes provided on the partition;

[0045] Each layer of the drying box is matched with a screen plate 4 and a stirring rod 5.

[0046] In this embodiment, a container body 1 of a continuous multi-layer stirring boiling dryer of the present invention comprises two layers of drying boxes, namely an upper drying box 1.1 and a lower drying box 1.2;

[0047] A partition 8 is provided between the upper drying box 1.1 and the lower drying box 1.2;

[0048] The upper drying box 1.1 is provided with a feed inlet 6 on one side and a transport pipeline 9 on the other side;

[0049] The bottom of the transport pipeline 9 is an inclined channel connected to one side of the lower drying box 1.2;

[0050] A discharge port 7 is provided on the other side of the lower drying box 1.2.

[0051] In this embodiment, the horizontal distance between each two connecting rods 5.2 is 250-350mm; the distance between the copying plate 5.3 and the mesh plate 4 is 1-5mm; the main shaft 5.1 is connected to the coupling 11; the coupling 11 is provided with kinetic energy by the driving motor 10 through belt transmission.

[0052] In this embodiment, the working method of a continuous multi-layer stirring boiling dryer of the present invention is as follows:

[0053] During operation, materials are added from the feed port 6, and at the same time, the hot air blower 2 is turned on, and the hot air is blown from the air outlet plate 3 from bottom to top;

[0054] The material is stirred by the stirring rod of the upper drying box 1.1, while being turned over and boiled and dried. Since the lifting plate 5.3 of the stirring rod of the upper drying box 1.1 is set at a certain angle relative to the central axis of the main shaft 5.1 and is arranged toward the moving direction of the material, and the connecting rod 5.2 has an inclined angle relative to the main shaft 5.1, and the lifting plate 5.3 also has an inclined angle relative to the connecting rod 5.2, the material is continuously stirred and moves forward in a spiral route, and then enters the transport pipeline 9 and is sent to the lower drying box 1.2 through the inclined pipeline at its bottom;

[0055] The material is continuously stirred by the stirring rod of the lower drying box 1.2. Since the design principle of the stirring rod of the lower drying box 1.2 is the same as that of the stirring rod of the upper drying box 1.1, but the setting angle is opposite, the material is continuously stirred, turned over, boiled and dried, and moves toward the discharge port 7 in a spiral route.

[0056] Finally, the material is discharged from the discharge port 7.

[0057] The above are only specific application examples of the present invention and do not constitute any limitation on the protection scope of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A continuous multi-layer stirring boiling dryer, comprising a container body (1), a hot air blower (2) is arranged on one side of the bottom of the container body (1), and an air outlet plate (3) is arranged at the bottom of the container body (1), characterized in that: A mesh plate (4) is arranged on the upper part of the air outlet plate (3), and a stirring rod (5) is also arranged above the mesh plate (4); The stirring rod (5) comprises a transversely mounted main shaft (5.1), a plurality of connecting rods (5.2) are arranged in a spiral shape on the main shaft (5.1), and a lifting plate (5.3) is provided at the top end of each connecting rod (5.2); The mesh plate (4) is an arc-shaped structure; The angle between the setting direction of the copy board (5.3) and the central axis of the main shaft (5.1) is 30-45°; The cross section of the lifting plate (5.3) is a right-angled trapezoid, and the connection angle between the hypotenuse and the base is 25-30°.

2. A continuous multi-layer stirring boiling dryer according to claim 1, characterized in that: The lifting plate (5.3) is arranged at an angle facing the moving direction of the material.

3. A continuous multi-layer stirring boiling dryer according to claim 1, characterized in that: The container body (1) comprises a plurality of drying ovens arranged in a serpentine shape, a partition is provided between every two layers of drying ovens, and a plurality of ventilation holes are provided on the partition; Each layer of the drying box is matched with a screen plate (4) and a stirring rod (5).

4. A continuous multi-layer stirring boiling dryer according to claim 3, characterized in that: The container body (1) comprises two layers of drying ovens, namely an upper drying oven (1.1) and a lower drying oven (1.2); A partition (8) is provided between the upper drying box (1.1) and the lower drying box (1.2); The upper drying box (1.1) has a feed inlet (6) on one side and is connected to a transport pipeline (9) on the other side; The bottom of the transport pipeline (9) is an inclined channel connected to one side of the lower drying box (1.2); A discharge port (7) is provided on the other side of the lower drying box (1.2).

5. A continuous multi-layer stirring boiling dryer according to claim 1, characterized in that: The horizontal distance between every two connecting rods (5.2) is 250-350 mm.

6. A continuous multi-layer stirring boiling dryer according to claim 1, characterized in that: The distance between the copy plate (5.3) and the mesh plate (4) is 1-5 mm.

7. A continuous multi-layer stirring boiling dryer according to claim 1, characterized in that: The main shaft (5.1) is connected to the coupling (11); The coupling (11) is provided with kinetic energy by a driving motor (10) through a belt drive.

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